, Exile a nonland card from your hand: Put four time counters on the exiled card. If it doesn't have suspend, it gains suspend. (At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. If it's a creature, it has haste.)
Use Jhoira to suspend big-mana bombs for just apiece, banking devastating spells that come down for free a few turns later with haste. You build a critical mass of suspended threats, ramp/stall in the meantime, and bury opponents under expensive sorceries, eldrazi, and game-ending finishers cast for no mana.
Effectively casts your most expensive spells for , generating massive mana advantage
Suspended creatures arrive with haste, enabling surprise attacks and immediate value
Can stockpile multiple bombs in a single turn if you have mana, then watch them all resolve
Filters dead cards and turns clunky high-CMC hands into a real plan
Slow and telegraphed—opponents see threats coming for several turns
Vulnerable to removal on Jhoira before you've banked enough spells
Suspended cards in exile are exposed to graveyard/exile hate and can't be protected once committed
Doesn't ramp or interact by itself, so a fast or disruptive table can race you
Time counters can't be hurried without specific support, so payoffs are delayed
Extra upkeeps mean extra counter removals, speeding every suspended threat.
Add time-counter accelerators (Paradox Haze, Lighthouse Chronologist, Jhoira's Timebug) and free-cast enablers like As Foretold to shorten the wait and double your output. Prioritize protection for Jhoira—Lightning Greaves, Swiftfoot Boots, counterspells—since the engine collapses without her. Finally, tighten the curve of payoffs around true game-enders (Emrakul, Expropriate, Apex of Power) and cut mid-value cards so every suspend genuinely threatens to win.